2 # This file and its contents are supplied under the terms of the
3 # Common Development and Distribution License ("CDDL"), version 1.0.
4 # You may only use this file in accordance with the terms of version
7 # A full copy of the text of the CDDL should have accompanied this
8 # source. A copy of the CDDL is also available via the Internet at
9 # http://www.illumos.org/license/CDDL.
13 # Copyright 2011 Nexenta Systems, Inc. All rights reserved.
14 # Copyright (c) 2019, Joyent, Inc.
17 LIBMDIR = $(SRC)/lib/libm
19 LIBMSRC = $(LIBMDIR)/common
21 CPP_CMD = $(CC) -E -Xs
23 # With studio CSTD of neither enabled nor disabled is "no_lib", whereby we
24 # expect C99-the-language, but don't modify the behaviour of library routines.
25 # This is VERY IMPORTANT, as $(CSTD_GNU99), for instance, would link us with
26 # values-xpg6, which would introduce an __xpg6 to our object with the C99
27 # flags set, causing us to default C99 libm behaviour on, breaking
30 # We must then, unfortunately, defeat the GNU compiler _defaulting_ to C99, by
31 # in that case setting it back to gnu89, which _also_ accepts C99 syntax as
32 # far as is important.
34 CFLAGS += -_gcc=-std=gnu89
35 CFLAGS64 += -_gcc=-std=gnu89
37 M4FLAGS = -D__STDC__ -DPIC
41 LDBLDIR = $(LDBLDIR_$(MACH))
43 CFLAGS += $(C_PICFLAGS)
44 CFLAGS64 += $(C_PICFLAGS)
45 sparc_CFLAGS += -Wa,-xarch=v8plus
47 CPPFLAGS += -I$(LIBMSRC)/C \
48 -I$(LIBMSRC)/$(LDBLDIR) -I$(LIBMDIR)/$(TARGET_ARCH)/src
49 $(RELEASE_BUILD)CPPFLAGS += -DNDEBUG
51 # GCC needs __C99FEATURES__ such that the implementations of isunordered,
52 # isgreaterequal, islessequal, etc, exist. This is basically equivalent to
53 # providing no -xc99 to Studio, in that it gets us the C99 language features,
54 # but not values-xpg6, the reason for which is outlined with CSTD.
55 CFLAGS += -_gcc=-D__C99FEATURES__
56 CFLAGS64 += -_gcc=-D__C99FEATURES__
58 # libm depends on integer overflow characteristics
59 CFLAGS += -_gcc=-fno-strict-overflow
60 CFLAGS64 += -_gcc=-fno-strict-overflow
62 # sparse currently has no _Complex support
63 CFLAGS += -_smatch=off
64 CFLAGS64 += -_smatch=off
66 $(DYNLIB) := LDLIBS += -lc
69 CLEANFILES += pics/*.s pics/*.S
71 FPDEF_amd64 = -DARCH_amd64
72 FPDEF_sparc = -DCG89 -DARCH_v8plus -DFPADD_TRAPS_INCOMPLETE_ON_NAN
73 FPDEF_sparcv9 = -DARCH_v9 -DFPADD_TRAPS_INCOMPLETE_ON_NAN
74 FPDEF = $(FPDEF_$(TARGET_ARCH))
76 ASFLAGS += -D_ASM $(FPDEF)
77 ASFLAGS64 += -D_ASM $(FPDEF)
83 XARCH = $(XARCH_$(TARGET_ARCH))
85 ASOPT_sparc = -xarch=$(XARCH) $(AS_PICFLAGS)
86 ASOPT_sparcv9 = -xarch=$(XARCH) $(AS_PICFLAGS)
88 ASOPT_amd64 = -xarch=$(XARCH) $(AS_PICFLAGS)
89 ASOPT = $(ASOPT_$(TARGET_ARCH))
94 CPPFLAGS_sparc = -DFPADD_TRAPS_INCOMPLETE_ON_NAN \
95 -DFDTOS_TRAPS_INCOMPLETE_IN_FNS_MODE
97 CPPFLAGS += $(CPPFLAGS_$(MACH))
98 ASFLAGS += $(CPPFLAGS)
99 ASFLAGS64 += $(CPPFLAGS)